You need to see this!!!

[Doc Harley]

First video is factory snub shaft (warm) with knockout kit
Please hold your comments while I upload videos, thank you!

 

[Doc Harley]

1049 Nitro shaft in my '17 sidewinder (cold start)

 

[DooZ]

Ya it's super quiet....because we can't see anything
Vids say private

 

[Doc Harley]

1049 Nitro Snubshaft (warm)

 

[Doc Harley]

Ya it's super quiet....because we can't see anything
Vids say private

Well ... sorry bud, never been happier! Unbelievable....
Sounds great at 6,000rpm
Disclaimer: this works perfect on my sled, results May vary. Offset will need to be adjusted.
Hahahahaha....love it!!!

 

[KnappAttack]

Is the 1049 shaft with the reluctor wheel on it?

 

[Doc Harley]

Is the 1049 shaft with the reluctor wheel on it?

Yes, the wheel has been removed.

 

[74Nitro]

I recently had a shaft from a 2011 Vector here. At the same time I had a Winder shaft out. I slid both shafts on the same crank and measured the back and forth movement and could measure no difference between the two.

 

[Doc Harley]

Thermal expansion and contraction was utilized to reassemble new parts. Just takes time... Which works perfect as you don't put excessive load the bearing.
The Nitro housing fits as well is just a little wider. .2mm (I think)
There is a difference at the housing to the tip of shaft dimension as well. .5mm. which I used a different shim to adjust belt offset

 

[KnappAttack]

Yes, the wheel has been removed.

That rules out the added flywheel effect then. Can only be the splines are tighter. Lakercr did the same thing and went to the tighter clearance bearing at the same time, he thought it was the bearing that had changed things and quieted the clutch, but I tested the bearing on a stock shaft and it did nothing for noise, so the difference is the spline tightness then in the 1049 shaft, but didn't the Nytro also rattle the clutch? As far as I can remember all the three cylinders rattled the primary badly. Oh well, glad it's working for you. Funny Yamaha couldn't figure this out....

 

[Doc Harley]

I recently had a shaft from a 2011 Vector here. At the same time I had a Winder shaft out. I slid both shafts on the same crank and measured the back and forth movement and could measure no difference between the two.

Someone else gave me the advice to give this a try. As he claims the Nitro shaft has a tighter tolerance. He was very specific as to which model/part he used. I'll find it
8GL-11406-00-00 Hub
I use the Timken (Japan) normal.

 

[74Nitro]

Someone else gave me the advice to give this a try. As he claims the Nitro shaft has a tighter tolerance. He was very specific as to which model/part he used. I'll find it
8GL-11406-01-00 Hub
I use the Timken (Japan) normal.

Maybe it's not the same as the one I tried.

 

[Doc Harley]

That rules out the added flywheel effect then. Can only be the splines are tighter. Lakercr did the same thing and went to the tighter clearance bearing at the same time, he thought it was the bearing that had changed things and quieted the clutch, but I tested the bearing on a stock shaft and it did nothing for noise, so the difference is the spline tightness then in the 1049 shaft, but didn't the Nytro also rattle the clutch? As far as I can remember all the three cylinders rattled the primary badly. Oh well, glad it's working for you. Funny Yamaha couldn't figure this out....

I don't want to assess blame. But Yamaha was built by Yamaha. I'm not exactly sure who built this Yamaha/Arctic Cat snub shaft?

 

[74Nitro]

I don't want to assess blame. But Yamaha was built by Yamaha. I'm not exactly sure who built this Yamaha/Arctic Cat snub shaft?

Well...... there were a bunch of years when Yamaha was built by Subaru....haha

 

[earthling]

That rules out the added flywheel effect then. Can only be the splines are tighter. Lakercr did the same thing and went to the tighter clearance bearing at the same time, he thought it was the bearing that had changed things and quieted the clutch, but I tested the bearing on a stock shaft and it did nothing for noise, so the difference is the spline tightness then in the 1049 shaft, but didn't the Nytro also rattle the clutch? As far as I can remember all the three cylinders rattled the primary badly. Oh well, glad it's working for you. Funny Yamaha couldn't figure this out....

Nytro was also loud, everyone was green loctiting the splines back then.